Clean Water Act Priority Pollutants Pollutant Category
All 126 pollutants that EPA currently defines as priority pollutants. Section 3.3.2 of the Technical Users Background Document for the DMR Pollutant Loading Tool describes how the Loading Tool identifies and priority pollutant parameters and calculates total priority pollutant loads.
Search Considerations: The Loading Tool selects pollutant loadings for the Priority Pollutants category if the loadings are associated with parameter codes in ICIS-NPDES that are on the priority pollutants list. This list is available in the Technical Users Background Document for the DMR Pollutant Loading Tool.